Block for strip-blocking machines.



Patented Mar.12,191&

AAI llIIII lNvENToR ATTORNEY A. SUNDH.

BLOCK FOR STRIP BLOCKING MACHINES.

APPLICATION FILED MAR. 25| I9I6.

,STA

Para fr FUSE.

BLOCK FOB STBIP-BLOCKING MACHJNES.

Specification of Letters Patent.

Patented Mar. 12, 1918.

Application mea March 25, 191s. serial m. 86,694.

To all whom z't may concern:

Be it known that I, AUGUST SUNDH, a citizen of the United States, residing in Hastings-upon-Hudson, in the county of Westchester and State of New York, have invented a new and useful Improvement in Blocks for Strip-Blocking Machines, of which the followingis a specification.

My invention relates to an improvement in blocks for strip blocking machines.

With the blocks now used in blocking strip metal, the roll of metal after being blocked has to be unwound before it can be taken away from the block, as owing to the tension on the strip as it is being blocked, it will be coiled very tightly on the block. This consumes time of course, and is troublesome. I have provided a block, however, which is collapsible, that is to say, after the strip has been blocked, the block may be collapsed and the strip easily removed. My block when expanded ready to receive the strip for blocking, has a. smooth cylindrical and unbroken surface for the strip to be wound on, which is a great advantage over the expansion blocks now in use, /in which the block after being expanded has openings in its periphery due to the expansion of the block, and the metal, especially the very thin metal in the blocking process is forced into these openings, which leaves ridges on the metal and sometimes even the metal is cut by being forced into these openings. Another advantage of the present block is that only part of its periphery is collapsed after the strip has been blocked,l the strip being left supported on the part not collapsed, which' provides convenient means for grasping the strip to remove it.

In the accompanyingdrawings illustrating my invention, Figure 1l is a sectional elevation view ofv thef block, as it appears ready to receive the strip to be blocked; Fig.

'2 is a sectional view of the block taken on the line A-A of Fig. 1, but with the block collapsed; Fig. 3 is a view on the line B--B of Fig. 1; Fig. 4 is a section on the line C--C of Fig. l; and Fig. 5 is a section on the line E-E of Fig. 1.

The block which is cylindrical in shape, is formed in sections, part of these sections being collapsible and the rest fixed; the fixed sections, which I have designated 1 on the drawings, and are three in number, extend longitudinally of the block for its entire length, these sections being '-shaped in cross section, their outer surfaces or periphery being convex. These sections are held in place permanently by caps 2 at each end of the block, the ends of the sections fitting in grooves in these caps and resting on springs 8. A hollow shaft 4 extends longitudinally of the block for its entire length, being threaded into the cap 2 at the left hand end of the block as viewed in Fig. l. This shaft 4 has a bearing in bearings 5 and it is through this shaft that the block is rotated through any convenient medium, such as a pulley on the shaft driven by l motor,.or by gearing direct. Within the shaft is a solid shaft 6, this shaft bein screw threaded at its left hand end as viewe in Fig. 1, and being provided for the purpose of operating the collapsible or movable sections of the block. These sections, designated l7, extend longitudinally of the block for its entire length, and as shown in Figs. 2 and 3, are movable to and from the center or longitudinal axis of the block in grooves or slots in the caps 2', and when moved out they entirely fill up the spaces betweeny the fixed sections 1. Thus when these sections 7 are a belt from a moved to their extreme outward position, y

squaredportion l13 is, formed aboutmidway.

ofthelength of the shaft, this squared portion entering a bushing 14 within the shaft 4, the bushing being secured to the klatter by means of a small set screw 15. Thus it will be seen that by rotating the hand wheel 11, the Shaft 6 will be caused to travel longitudinally either to the left or right, bein held against rotation by the bushing 14 and squared portion 13 of the shaft. Now to permit and cause the portions 7 to move in toward the longitudinal axis of the block, the hand wheel 11 is turned in the proper direction to cause the shaft 6 to travel to the left, Fig. 1. The shoulders 10 will travel olf the tongues 8 of the sections 7, and so soon as they ride olf these tongues, tlie tions 7 are free to be forced inwardly by springs 16 which Vare placed at each end of each section and between the ends of the sections and the cap 2. Now to move the sections outwardly again, the hand wheel is turned in the opposite direction, and the beveled front end of the shoulders 10 will strike the-beveled or cut away back part of the tongues 8 onvthe movable sections, and gradually force the sections 4outwardly until the straight face of the shoulders rides on the straight face of the tongues 8, at which time the sections 7 will bein their extreme voutward position and held there. Y position, it will be seen that the contour of the block is circular, and that its periphery is smooth and unbroken. After the strip has been blocked, the sections 7 are moved inwardly again, and the blocked strip left hanging on the sections 1, but as these sections vare spaced apart, the strip may .be easily grasped, and as these sections are slightly yieldable by reason of resting on the springs 3, it will be seen that it is an easy matter and requires but a moment -to remove the strip, by simply pulling it 0H the section 1 instead of having to unwind it olf the block as has had to be done with the type of block in use at the present time.

It will be readily seen that'my block presents many advantages over the other blocks in the art of strip blocking, and that I ,have provided a 'block which is simple inconstruction, and operation, and which by reason of its simple construction will not easily get out of order. v

I do not desire to be limited to the precise details and arrangement of parts herein disclosed as others skilled in this art might make various changes therein without departing from the s irit and scope of the Invention.

What I claim is 1. Ina block adapted to wind a strip coming from a strip mill, the combination of a plurality ofV sections, inclined lsurfaces on' said sections, manually controlled'mechanism with inclined surfaces coacting with the inclined surfaces of said sections whereby the sections arey expanded or collapsed by the operation of said manually operated means, and' yieldingly supported ribs between the sections.

2. In a block adapted to wind a strip comsupported ribs between said In this and ing from a strip mill, the combination of a plurality of sections forming part of the winding surface of the block, and yieldably sections and coactingtherewith to make the winding surface of the block smooth and unbroken.

3. In a block adapted to wind a strip coming from a. strip mill, the combination of a plurality of movable sections, guiding means for said sections, and a plurality of yieldably supported ribs coperating with said movable sections, to form the block, and guiding means for said ribs.

4. In a block adapted to wind a strip coming from a strip mill, the combination of a plurality of spaced apart movable sections, a plurality of yieldably supported T ribs to lill up the space between said sec tions, said sections and T-ribs coperating to form a smooth vunbroken winding surface for the block.

5. In a block adapted to wind a strip fed from a strip'mill, the combination of a ,hollow shaft, a shaft within said hollow shaft, a plurality of sections surrounding said shafts and forming part of the winding surface' of the block, said inner shaft adapted to be actuated to impartbodily movement to said sections, means to prevent relative rotation of the two shafts, and yieldingly supported members between the said sections, the' said sections and yieldingly sugported members together forming the win ing surface of the block.`

6. In a block adapted to wind a strip fed from .a strip mill, the combination of a hollow shaft', a shaft within said hollow shaft and movable longitudinally thereof, a plurality of sections surrounding said shafts and forming part of the windin surface of the block, the inner shaft adapted to be actuated to impart bodily movement to said sections, means to prevent relative rotation of the two shafts, and yieldingly supported members between said sections, saidl members and sections together ing surface of the block.

In testimony whereof I`havesigned myy name to this specification in two subscribing witnesses. f

AUGUST. SNDI-I.

the presence of Witnesses:

HAROLD RoNNE, WALTER C. STRANG.

forming the wind- 

